Should you still test your own body fat even if you have other methods available?

Should you still test your own body fat even if you have other methods
available?
Having a personal trainer or fitness professional measure your body fat with a
multiple site skinfold test is great, as long as you have regular access to that
person (you need frequent feedback to track your results), and you're certain your
tester is experienced. I have no idea how many people I have tested over the last
15 years, but if I had to guess, I would say it's at least a few thousand, and that's
why my accuracy and consistency are so good.
At our health clubs, and with my personal coaching clients, I use the Skyndex I, a
very accurate digital caliper that uses the "Durnin" 4-site pinch test formula. If you
have access to this type of testing, you can certainly continue using it and an
experienced tester will give you very accurate and consistent results. However, I
still believe the Accu Measure is a handy device to learn how to use and keep
around, just in case your official fat tester "skips town" on you.
If you have a friend, husband, wife, boyfriend, girlfriend, roommate, training
partner, etc. who can test you with traditional multi-site methods, that's an option
too. Just remember, your tester will have to go through the learning curve and
their accuracy will be dubious in the beginning until they are experienced.
If you prefer to have someone else test you, you can use the Accu Measure (most
economical), or you can invest in a professional health club grade electronic caliper
such as the Skyndex I ($350 - $500), the Lange ($200-$300), The Harpenden
($350 to $450) or the economical, (yet still accurate), The Slimguide ($30), which
is plastic, but quite heavy duty. All these calipers are available from Creative
Health Products. Their website is www.chponline.com and their phone number is
800-742-4478, email: sales@chponline.com. The charts you need to convert
skinfolds (in millimeters) to body fat percentage come with the calipers when you
purchase them. (Except the digital Skyndex I, which has a nifty built in
microprocessor that converts your skinfolds to body fat percentage automatically)

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Is Dietary Fat Related to Cancer?

Is Dietary Fat Related to Cancer?
Eating a diet with a higher percentage of the calories derived from fat
appears to place people at greater risk of many cancers. This may partly
be explained by the association between a high fat diet and the develop-
ment of obesity. However, some researchers believe that a high fat diet
exerts an independent effect as well. In addition, diets containing higher
amounts of linoleic acid, an essential omega-6 PUFA, have been reported
to place people at a greater risk of various cancers.
an oral chemotherapy drug used for the treatment of cancer.

What Is the Element Composition of Our Body?

What Is the Element Composition of Our Body?
The late, great Carl Sagan in his personal exploration of the cosmos said
that we are made up of "star stuff." What he meant was that our body is
made up of many of the very same elements that make up planets and
other celestial bodies in the universe. We humans, as well as other life-
forms on our planet, have simply borrowed these elements. Interestingly,
four of these elements, namely oxygen, carbon, hydrogen, and nitrogen,
make up greater than 90 percent of our body weight. Since the majority
of these elements are found in our body as part of substances such as
water, proteins, carbohydrates, fats, and nucleic acids (DNA and RNA),
it only makes sense that these substances must be the major chemicals of
Table 1.1 Elements of Our Bodies
Major Elements          Percentage of  Minor Elements        Percentage of
(>0.1% Body Weight)     Body Weight    (<0.1% Body Weight)   Body Weight
Oxygen (O)              63             Iron (Fe)             <0.1
Carbon (C)              18.0           Selenium (Se)         <0.1
Hydrogen (H)             9.0           Copper (Cu)           <0.1
Nitrogen (N)             3.0           Cobalt (Co)           <0.1
Calcium (Ca)             1.5           Fluoride (F)          <0.1
Phosphorus (P)           1.0           Iodine (I)            <0.1
Potassium (K)            0.4           Molybdenum (Mo)       <0.1
Sulfur (S)               0.3           Manganese (Mn)        <0.1
Sodium (Na)              0.2           Vanadium (V)          <0.1
Chloride (Cl)            0.2           Chromium (Cr)         <0.1
Magnesium (Mg)           0.1           Boron (B)             <0.1
                                       Zinc (Zn)             <0.1
                                       Aluminum (Al)         <0.1
                                       Tin (Sn)              <0.1
                                       Silicon (Si)          <0.1
                                       Arsenic (As)          <0.1